Verification code countdown effect

12 Jul 2016

Simple verification code generation, simple verification code generation. Simple verification code generation, simple verification code generation for($i= 0;$i 5;$i ){ $rand .= dechex( rand( 1, 15)); // Random number hexadecimal 1-F generation 5} $im = imagecreatetruecolor (100, 30)

12 Jul 2016

PHP date and time, PHP date time. PHP date and time, PHP date and time 1. date string date ( string $format [, int $timestamp ] ) echo date('Y') . 'br/';// 2016 echo date('y') . 'br /';// 16 echo '------br/'; echo

06 Jul 2016

My local code and online code are exactly the same. Both the local and server use centos7.2. My environment is nginx fpm. Why does the verification code not change when refreshing the login page locally (this is the result I expect), but Once I upload it to the server, the verification code changes every time I refresh the login page...

06 Jul 2016

1. The graphic verification code does not appear in the first three submissions. 2. The graphic verification code appears after the third time and can be submitted only after verification. What is the basis for counting the number of submissions? IP? Cookie? Session? Or other ideas. If it is a SMS verification code channel, others use dynamic How to control if the IP library is used to attack? http://m.rong3...

06 Jul 2016

PHP generates a simple example of verification code, php verification code example. A simple example of generating a verification code with PHP. PHP verification code example. After reading it, you will know how to hit me. Don’t talk too much, let’s do it (people don’t talk much) 1.0 First look at the code phpheader("Content

06 Jul 2016

PHP implementation is suitable for custom verification code classes, php verification code. PHP implementation is suitable for custom verification code classes, php verification code. The example of this article shares the PHP verification code class for everyone, and uses objects to implement the verification code class for your reference. The specific content is as follows

12 Jul 2016

Zend Framework generates verification codes and implements verification code verification functions (with demo source code download), zenddemo. Zend Framework generates verification codes and implements verification code verification functions (with demo source code download), zenddemo This article describes how Zend Framework generates verification codes and implements verification code verification functions.

12 Jul 2016

PHP generates verification codes, and php generates verification codes. PHP generates and makes verification codes. PHP generates verification codes and you will know how to do it after reading it. You will not hit me. Don’t talk too much and start talking (people don’t talk much) 1.0 First, look at the code 1? php 2 header ("Content-Type :t

27 Dec 2024

Timezone Conversion in PHP: Simplifying Date and Time Management Across Time ZonesConverting date and time across time zones is a common challenge...